Answer:
Divide each side of 18/4 by 2 to get <u>9/2.</u>
To reach $3,900 with an interest rate of four percent on an account originally containing $1,100, it would take 32.27 years.
Hope this helps you
Let X = the number of pennies.
The number of nickels would be 2X
A penny is 0.01 and a nickel is 0.05
Now you have:
0.01x + 2(0.05x) = 8.80
Simplify:
0.01x + 0.10x = 8.80
Combine like terms:
0.11x = 8.80
Divide both sides by 0.11:
x = 8.80 / 0.11
x = 80
Pennies = X = 80 total pennies.
Nickels = 2x = 2 *80 = 160 nickels.
The area given is 380.13
·The equation to find are is pi(r²)=a
·The equation to find the diameter of a circle using the area is a/pi=D
Knowing this we just plug everything in.
·380.13/3.14=D
Now knowing this we solve
380.13/3.14=120.99
-I hope this is the answer you are looking for, feel free to post your questions here on brainly in the future.